The LBP6030B does not have an auto-duplexer, but you can print manually:
Weighs only 5 kg and features a front power switch to help reduce energy costs. Drivers and Connectivity canon lbp6030b driver
Q: Can I use a third-party driver? A: It's recommended to use the official Canon driver to ensure compatibility and optimal performance. The LBP6030B does not have an auto-duplexer, but